Electric-railway system.



No. 657,431.. Pfhted sept. 4', 1900.

E. FnrscnmuTH.

l ELECTRIC RAILWAY SYSTEM.

(Application med .Feb.` 12, 1960.)

(No Model.)-

.Emme Z 157m@ UNITED STATES PATENT OFFICE.

EMMERICH FRISCHMUTH, OF BERLIN, GERMANY, ASSIGNOR TO THE SIEMENS da HALSKE ELECTRIC COMPANY OF AMERICA, OF CHICAGO,

ILLINOIS.

ELECTRIC-RAILWAY SYSTEM.

SPECIFICATION forming part of Letters Patent No. 657,487, dated September 4, 1900.

Application led February 12, 1900. Serial No. 4,920. (No model.)

systems, and has for its object the provision of improved means for the suspenion of trolley-conductorsl employed in such systems.

More particularly, my invention relates to improved means for suspending the said trolley conductors upon curves, turnouts, or other places Where the path of the conductor does not lie in a straight line, so that trolley-poles with sliding contact or whose size is otherwise. suliicient to make it difficult for the same to pass such curves without coming into contact with the span wires or other means employed for the support of the said trolley-conductor move safely around the 'said curves without danger of breaking contact therewith or being otherwise disturbed in their line of travel.

The usual suspensions` employed in those railway systems in which the current is collected from the trolley-wire by means of a trolley-wheel placed upon a trolley-pole and conducted from thence to the motors are applicable only toV single-track roads in such y systems in which broad trolley-poles-as, for instance, such as are adapted to effect sliding contact with the trolley wire-are utilized. In double-track roads the span-wire which supports the trolley-conductor which is upon the inner side of the curve or which unites the usual single pull-0H trolley-conductor support of this conductor to the trolley-support holding the outer conductor of the curve l is in most instances so low that the sliding-contact trolley-pole or other trolley-pole I. of similar construction is not able to pass` the curves without coming into contact with the span-wire, thereby frequently breaking contact with the trolley-Wire and in some instances r'upturing the span-wire. Generally Speaking, my invention provides a means whereby the usual suspensions employed in electric railway systems which utilize the trolley-wheel may be likewise employed in systems in Which the current is conducted from the trolley-wire to the motors of the car by means of a sliding-contact trolley-pole.

In its preferred embodiment my invention consists in the provision of an improved trolley-conductor support for the outer wire of curves, this trolley-conductor support being preferably provided with an adjustable vertical extension, through whichA I preferably pass the span-wire secured to the trolley-conductor support of the inner wire. This spanwire I preferably attach to a suitable anchorpole, an insulator being preferably provided in the said span-wire to guard against leakage of current. I preferably secure the spanwire attached to my improved trolley-conductor support holding the outer wire of the curve to the same supporting means to which the first aforesaid span-wire is attached, an insulator being alsoV preferably provided in the second span-wire.

I will describe my invention more particularly by reference to the accom pan yin g'drawings, illustrating the preferred embodiment thereof, in Which- Figure l illustrates the application of my improved trolley conductor support to an electric-railway system, trolley-.poles being shown as engaging the trolley-Wires. Fig. 2 illustrates the modication of the apparatus shown in Fig. l.

Like parts are indicated by similar letters of reference in both figures.

Two cars ot a, which are adapted to be operated in a double-track electric-railway system in opposite directions upon the two tracks thereof,are each shown as provided with a trolley-pole h. Trolley-conductors c d, in this iustance shown as portions of a curve of the electric-railway system,are adapted to convey current to the cars a a through the agency of the trolley-poles h b, which have a sliding engagement therewith. The trolley-conductor c is in this instance the outer conductor of the curve,while the trolley-conductor din this instance is the inner conductor of 'the same curve. The trolley-cond uctor support @,Which may be of any well-known type, may be ern- IOO - h. The top of `this post h is preferably pro-.

v cured to the inner tr'olIefy-condnctor support vided with a recess or grooved head vl. Aspan- Wire la serves to unite the trolley-conductor su pport f to a supporting means l, preferably provided upon a rigid portion Z'. I preferably conduct the span-wire m, which is see, through the groove or hole provided in the; head t' of the outer trolley-conductor support f and then secure the saine to the same sup-4 portingy means Z employed for. securing the span-wire la, which is united to the outer trolley-conductor support. Insulators n n; Vare shown as being interposed between por-l tions of the span-wires k and m to guard against short-circuits or leakage of curren't to the supporting means.

In Fig. 2 I have shown the two span-Wiresl k and m as united and then secured to the sup-g porti ng means lby means of an auxiliary wire l0, an insulator being preferably provided:y

therein. Itis-seen from the ligure that/by the use of themproved apparatus of myinvention the span-wire m, united to lthe inner trolleyconductor support e, is suiciently elevated5 above the plane of the trolley-conductors, sog that the trolley-poles carried upon the carsi may round curves without danger of coming; in contactv therewith, thereby securing an unbroken engagement between the trolley-pole and the trolley-conductor and obviating thei other objectionable features incident to the; other systems above referred to. l vtion of the forces exerted by the trolley wire, upon .the span-wires is indicated by themrows.` By the use of the screw-threaded vertically-adjustable post hit will be seen that an easy and ready means of adjustment ofthe positions of the trolley-conductors maybe efl fected. l v While I have herein shown and particu-1? larl'y described the preferred embodiment ofi;

my invention, -t is obvious that changes may readily be made in the construction and arrangement of the parts herein shown without departing from the spiritthereof, and I therefore do not wish to limit myself to the-precise@ construction herein shown; but, i ,A Having-'thus described my invention, I cl'ai/rii as new and desire to secure by Letters Patentl 1. In a double-track electric-railway system, the combination with the two contuc- ,tors for the two tracks, of span-wires extending to said conductors, the span-wire for one conductor crossing the other conductor, and f; means for elevating said crossing span-wire 1 an extent to ,prevent its interfering with the current-collectin g device,whichtrave1s along the conductor which it crosses.

The direc- 2. `In a double-trackelectric-railway systhev combination with the tivo conductors for the two tracks, ofspan-wires extending to said conductors,- the span-wire for one conductor'crossing the other conductor, sup- ,ports for the conductors serving as media of lattachrnent of the span-wiresv to the conductoraand means on the'support ofthe crossed conductor for elevating the 'span-'wire of the other conductor an extent to prevent its intcr'fering with the vcurrent-collecting device traveling along such crossed conductor. 3. In an electric-railway system, the combination 'with the trolley-cond uctors thereof, kof-a trolley-conductor su pport su pportin g one of the said trolley-conductors, asecond trolleyconductor support by which the second aforesaid .trolley-conductoris supported, and a vertical extension provided upon thesecond trolley-conductor support whereby the span-wire attached to the first aforesaid trolley-conductor support `is passed over the second trolley-conductor support, substantially as described. n l

4..Y In an electric-railway system, the combination with the trolley-conductors thereof, of .a `trolley-conductor su pport supporting one ofthe said trolley-conductors, asecond trolley! conductor support by which the second aforesaid trolley-cond uctor is supported, and a vertical ex'tension-provided rupon the second trolley-conductor support whereby the span-wire attached to the first aforesaid trolley-conducvtor support is passed over the second trolleyconductor support,- the said span-Wire and .the span wire attached to the second trolley-conductor support being attached to the vsame supporting means, substantially as described y '5. vIn an electric-railway system, the combination withthe trolley-conductors thereof, ofa trolley-cond uctor support supporting one ofthe said trolley-eonductors,a secondtrolleyconductor support'by which the second aforesaid trolley-conductor is-supported, a vertical extension, and an adjustable post mounted insaid vertical extension whereby thespanwire attached to the first aforesaid trolleyconductor .support is passed over thesecond trolley-conductor support, substantially as described.

6.V In an electric-railway system., the combiuation with the trolley-conductors thereof, of a trolley-conductor support supporting one of the said trolley-conductors,a second trolleyconductor support'by which the second aforesaid trolley-conductoris supported, a vertical extension, and an adjustable post mounted in said vertical extension whereby the span- Wire attached to the kfirst aforesaid trolleyconductor support ispassed over the second -and .the span-wire attached to the second trolley-conductor support being attached to the same-supporting means, substantiallyas described.

g 7- 1D@ @bmw-railway Systemtthe 90m:

bination with the trolley-conductors thereof, of a trolley-conductor support supporting one of the said trol ley-conductors,a second trolleyconductor support by which the second aforesaid trolley-conductor is supported, a vertical extension, an adjustable post provided in the said extension, and a recessed head which is adapted to receive the span-Wire attached to 4 the rst aforesaid trolley-conductor support,

substantially as described.

8. In an electric-railway system, the combination with the trolley-conductors thereof, of a trolley-conductor support supporting one of the said trolley-conductors,a second ltrolleyconductor support b y which the second aforesaid trol ley-conductor is supported, a vertical extension, an adjustable post provided in said extension, and a recessed head which is adapted to receive the span-wire attached to the first aforesaid trolley-conductor support, the said span-wire and the span-wire attached to the second trolley-conductor support being attached to the same supporting means, substantially as described.

9. In an electric-railway system, the combination with the trolley-conductors thereof, of a trolley-conductor support, su pporting one of the said trolley-conductors,a second trolleyconductor support by which the second aforesaid trolley-conductor is supported, a vertical extension, a post having screw-threaded engagement with the said extension and being vertically adjustable thereof, and a recessed head which is adapted to receive the span- Wire attached to the first aforesaid trolleycon d uctor su pport,substantially as described.

10. In an electric-railway system, thecombination with the trolley-conductors thereof, of a trolley-conductor support supporting one of the said trolley-conductors,a second trolleyconductor support by which the second aforesaid trolley-conductor is supported, a vertical extension, a post having screw-threaded engagement with said extension and being verticall y adjustable thereof,and a recessed head which' is adapted to receive the span-wire attached to the first aforesaid trolley-conductor support, the said span-wire and the span-wire attached to the second trolley-conductor support being attached to the same supporting means, substantially as described.

11. In an electric-railway system,the combination with the trolley-conductors thereof, of a trolley-conductor support supporting one of the said trolley-conductors, a second trolley-conductor support by which the second aforesaid trolley-conductor is supported, a vertical extension, a post having screwthreaded engagement with the said extension and being vertically adjustable thereof, a reaforesaid trolley-conductor is supported, a

vertical extension, a post having screwthreaded engagement with said extension and being vertically adjustable thereof, a recessed head which is adapted to receive the spanwire attached to the iirst aforesaid trolleyconductor support, the said span-'wire and the span-wire attached to the second trolleyconductor support being attached to the same supporting means, and insulators provided in the said span-wires, substantially as described.

13. In an electric-trolley-conductor support, the combination with a post portion thereof, yof a vertical extension g provided thereon, a vertically-adjustable post h in engagement with the said vertical extension, and a head 'L' provided on said adjustable post, substantially as described.

I4. .In an electric-railway system, the combination with curved portions of trolley-conductors thereof, of a trolley-conductor support supporting one of the said trolley-conductors, a second trolley-conductor support by which the second aforesaid trolley-conductor is supported, and means whereby the span-Wire attached to the first aforesaid trolley-conductor support is passed over the second trolley-conductor support, substantially as described.

I5. In an electric-railway system, the combination with curved portions of trolley-conductors thereof, of a trolley-conductor support supporting one of the said trolley-conductors, a second trolley-conductor support IOO IOS

by which the second aforesaid trolley-conduc- IIO 

